JP2013007107A5 - - Google Patents
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- JP2013007107A5 JP2013007107A5 JP2011141485A JP2011141485A JP2013007107A5 JP 2013007107 A5 JP2013007107 A5 JP 2013007107A5 JP 2011141485 A JP2011141485 A JP 2011141485A JP 2011141485 A JP2011141485 A JP 2011141485A JP 2013007107 A5 JP2013007107 A5 JP 2013007107A5
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- molybdenum
- treatment solution
- phosphorus
- calcium
- recovering
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Description
（モリブデンの回収方法）
第１発明のモリブデンの回収方法は、モリブデンを含有する水溶液である処理溶液からモリブデンを回収する方法であって、前記処理溶液による溶媒抽出を行ってモリブデンに抽出する抽出工程と、該抽出工程で得られた抽出溶媒を逆抽出する逆抽出工程と、該逆抽出工程で得られた逆抽出液に対して酸を添加して、モリブデンをモリブデン酸塩の沈殿として回収する回収工程とを順に行うものであり、前記抽出溶媒が、第２級アミン抽出剤を成分として有する抽出溶媒であることを特徴とする。
第２発明のモリブデンの回収方法は、第１発明において、前記抽出工程において、前記処理溶液を、ｐＨが３．０〜４．０となるように調整することを特徴とする。
第３発明のモリブデンの回収方法は、第１発明または第２発明において、前記処理溶液中のリンとモリブデンのモル比（Ｐ／Ｍｏ）が0.075以上の場合において、前記抽出工程を行う前に脱リン工程を行うことを特徴とする。
第４発明のモリブデンの回収方法は、第３発明において、前記脱リン工程において、前記処理溶液に対して、カルシウムのリンに対する添加当量が１以上５以下となるように、水酸化カルシウムを添加することを特徴とする。
第５発明のモリブデンの回収方法は、第３または第４発明において、前記脱リン工程において、前記処理溶液に対して、カルシウムのリンに対する添加当量が１より大きく２未満となるように、水酸化カルシウムを添加することを特徴とする。
第６発明のモリブデンの回収方法は、第３、第４または第５発明において、前記脱リン工程において、前記処理溶液を、ｐＨが１２以上となるように調整することを特徴とする。
（モリブデンの抽出溶媒）
第７発明のモリブデンの抽出溶媒は、モリブデンを含有する水溶液である処理溶液からモリブデンを抽出するための抽出溶媒であって、該抽出溶媒が、第２級アミン抽出剤であることを特徴とする。
(Molybdenum recovery method)
The molybdenum recovery method of the first invention is a method of recovering molybdenum from a treatment solution that is an aqueous solution containing molybdenum, an extraction step of performing solvent extraction with the treatment solution to extract into molybdenum, A back extraction step for back-extracting the obtained extraction solvent and a recovery step for adding molybdenum to the back-extracted solution obtained in the back-extraction step and recovering molybdenum as a molybdate precipitate are sequentially performed. The extraction solvent is an extraction solvent having a secondary amine extractant as a component.
The method for recovering molybdenum according to the second invention is characterized in that, in the first invention, the treatment solution is adjusted to have a pH of 3.0 to 4.0 in the extraction step.
Method for recovering molybdenum third invention, in the first or second aspect, the molar ratio of phosphorus to molybdenum of the processing solution (P / Mo) is in the case of 0.075 or more, de before performing the extraction step A phosphorus process is performed.
In the method for recovering molybdenum according to a fourth invention , in the third invention, in the dephosphorization step, calcium hydroxide is added to the treatment solution so that an addition equivalent of calcium to phosphorus is 1 or more and 5 or less. It is characterized by that.
In the third or fourth invention , the method for recovering molybdenum according to the fifth invention is characterized in that , in the dephosphorization step, the addition equivalent of calcium to phosphorus is greater than 1 and less than 2 with respect to the treatment solution. It is characterized by adding calcium.
The method for recovering molybdenum according to a sixth aspect of the present invention is characterized in that , in the third , fourth, or fifth aspect , the treatment solution is adjusted to have a pH of 12 or more in the dephosphorization step.
(Molybdenum extraction solvent)
The molybdenum extraction solvent according to the seventh aspect of the invention is an extraction solvent for extracting molybdenum from a treatment solution that is an aqueous solution containing molybdenum, wherein the extraction solvent is a secondary amine extractant. .
Claims (4)
ことを特徴とする請求項１または２記載のモリブデンの回収方法。 The recovery of molybdenum according to claim 1 or 2 , wherein a dephosphorization step is performed before the extraction step when the molar ratio (P / Mo) of phosphorus and molybdenum in the treatment solution is 0.075 or more. Method.
ことを特徴とする請求項３記載のモリブデンの回収方法。 The method for recovering molybdenum according to claim 3 , wherein in the dephosphorization step, calcium hydroxide is added to the treatment solution so that an addition equivalent of calcium to phosphorus is 1 or more and 5 or less.
ことを特徴とする請求項３または４記載のモリブデンの回収方法。 Wherein the dephosphorization step, to the processing solution, so that the added equivalent to phosphorus calcium less than 2 greater than 1, of molybdenum according to claim 3 or 4, characterized in that the addition of calcium hydroxide Collection method.
ことを特徴とする請求項３、４または５記載のモリブデンの回収方法。 6. The method for recovering molybdenum according to claim 3, 4 or 5 , wherein, in the dephosphorization step, the treatment solution is adjusted to have a pH of 12 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011141485A JP5549648B2 (en) | 2011-06-27 | 2011-06-27 | Molybdenum recovery method and molybdenum extraction solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011141485A JP5549648B2 (en) | 2011-06-27 | 2011-06-27 | Molybdenum recovery method and molybdenum extraction solvent |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2013007107A JP2013007107A (en) | 2013-01-10 |
| JP2013007107A5 true JP2013007107A5 (en) | 2013-12-26 |
| JP5549648B2 JP5549648B2 (en) | 2014-07-16 |
Family
ID=47674689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011141485A Active JP5549648B2 (en) | 2011-06-27 | 2011-06-27 | Molybdenum recovery method and molybdenum extraction solvent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5549648B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6137972B2 (en) * | 2013-07-19 | 2017-05-31 | 日立Ｇｅニュークリア・エナジー株式会社 | Method and apparatus for inhibiting corrosion of nuclear reactor structure |
| JP7175756B2 (en) * | 2018-12-27 | 2022-11-21 | Ｊｘ金属株式会社 | Valuable metal recovery method |
| CN111041244A (en) * | 2019-12-20 | 2020-04-21 | 核工业北京化工冶金研究院 | Method for treating and recycling amine molybdenum-containing triphase substances |
| CN114350983A (en) * | 2021-12-17 | 2022-04-15 | 中核沽源铀业有限责任公司 | Method for recovering molybdenum from ammonium molybdate acidic wastewater |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53113792A (en) * | 1977-03-17 | 1978-10-04 | Toyo Soda Mfg Co Ltd | Separating and recovering method for molybdenum from molybdenum-containing waste catalyst |
| JPH06248369A (en) * | 1993-02-26 | 1994-09-06 | Sumitomo Metal Mining Co Ltd | Separation of molybdenum from aluminum solution containing molybdenum |
| JP2751093B2 (en) * | 1994-03-11 | 1998-05-18 | 住友金属鉱山株式会社 | Method for recovering valuable metals from spent catalyst |
| US7485267B2 (en) * | 2005-07-29 | 2009-02-03 | Chevron U.S.A. Inc. | Process for metals recovery from spent catalyst |
| WO2007032228A1 (en) * | 2005-09-16 | 2007-03-22 | Mitsubishi Rayon Co., Ltd. | Methods for recovery of molybdenum and process for preparation of catalysts |
| JP4758377B2 (en) * | 2007-03-23 | 2011-08-24 | メタウォーター株式会社 | Incineration ash treatment method |
-
2011
- 2011-06-27 JP JP2011141485A patent/JP5549648B2/en active Active
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